[N8N + GPT + WhatsApp] Report Generator
320 USDWe are looking for a technical freelancer to help us build a simple GPT-4 powered automation system. Below is a full summary of the work:
Project Goal:
We need an automated system that generates short and full business reports based on a client's date of birth. The system will use GPT-4 API via n8n automation platform and output the results as a WhatsApp message (lead magnet) and as a PDF (paid report).
Tech Stack:
OpenAI GPT-4 API (structured outputs / function calling)
n8n (already installed on our server)
JSON data structure
PDF generation (n8n, Node.js, or Python)
WhatsApp integration via API (Umnico or similar)
Work Scope:
1️⃣ Lead Magnet (free short report):
Receive client data (Date of Birth, email, name).
Call GPT-4 API → return 5 short insights (approx. 800–1000 characters).
Send result to client via WhatsApp (using Umnico API).
Store client data and GPT response in n8n or CRM.
2️⃣ Tripwire Report (paid full report):
After payment, reuse stored Date of Birth.
Call GPT-4 API again with a longer prompt.
Receive structured JSON output.
Convert JSON → PDF (we will provide the design template).
Deliver PDF to client (via email or download link).
3️⃣ System Architecture Consultation (1–2 hrs):
Zoom call to help us plan GPT API, n8n, and PDF integration.
Help structure GPT outputs in JSON for future scaling.
4️⃣ Pipeline Build (3–4 hrs):
Connect GPT-4 API to n8n.
Build full pipelines for both Lead Magnet and Tripwire reports.
Test API calls and outputs.
5️⃣ PDF Generation (3–4 hrs):
Create PDF generator with provided template.
Fully automate: JSON → PDF → file storage/delivery.
6️⃣ Team Training (2 hrs):
Show us (Agnessa & Pavlik):
How to edit GPT prompts.
How to clone pipelines for additional reports.
How to work with n8n nodes.
Provide basic documentation or screen recordings.
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1 day400 USD
3853 24 0 1 day400 USDGood afternoon,
I am ready to take on your project to create an automated system using GPT-4 through n8n for generating business reports. I am familiar with working with the GPT-4 API, integrating WhatsApp, and automatic PDF generation. I will ensure system connection, configure WhatsApp integration, and develop the complete process of converting JSON to PDF.
My rate is $16 per hour.
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7 days390 USD
99 7 days390 USDHello,
Thank you for sharing your idea in such a clear and thoughtful way. I really like the concept of offering both a free and paid report through automation. It’s smart, helpful, and a great use of GPT-4.
I can help you build a system that runs smoothly from start to finish. I worked with GPT APIs, n8n workflows, and PDF generation tools before. I can make sure everything connects well, from collecting client info to sending results on WhatsApp and delivering the final report as a PDF.
I'll keep the structure clean and future-friendly. I'll help design the JSON outputs from GPT, set up both flows inside n8n, and show you how to adjust prompts or clone pipelines when you need to. I'll also make simple documentation or short recordings so it’s easy to follow later.
Thanks for your time.
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5 days350 USD
1117 4 0 5 days350 USDHi Agnessa and Pavlik,
Thank you for sharing the full scope of your project. I've read through the details, and I believe I can help you build a clean, reliable system using GPT-4, n8n, and your chosen APIs. I've worked on similar automation flows and can guide the full setup from planning through delivery.
We'll keep everything simple and scalable. I'll help structure the GPT outputs in JSON, connect the n8n flows, and generate the reports as needed. I'll also make sure the PDFs look great based on your design and are delivered smoothly to your clients.
I'll be happy to walk you through the system step by step, including how to update prompts and manage flows yourselves. I can also prepare short screen recordings or notes, so everything stays easy to manage later on.
If this sounds good, I'd love to schedule the first short call and get started.
… Looking forward to working with you.
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18 days320 USD
8796 60 0 1 18 days320 USDHello,
We are SolidWay and we can certainly help you build the automated system you described. Our team has extensive experience with integrating APIs, working with n8n, and utilizing GPT-4 for various projects. We've successfully implemented similar automation solutions, ensuring efficient data handling and seamless user interaction.
We understand the importance of crafting both the lead magnet and paid report systems, as well as providing the necessary training for your team. We’ll define the timeframe and budget after we discuss the task in more detail to ensure we meet your specific needs effectively.
We look forward to collaborating on this project and delivering a solution that enhances your business reporting processes.
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